99.36: What happens to the inertia k6g houq*1 gwv,fo8b.k*r 2yq,jq/ qhof an object when its velocity is doubled?

  02.14: An intrinsic property of matter is one thvnfxq*:nqh4 x0c 7( *dmuq 1mfat does not depend on the quantity of matter present. Which of the following properties is NOT an intrinsicq hcqf*x:vf1u7q0d ( * mnxn4m property?

  04.16: A 20 kg boulder rests on the surface of the Earth. Assume the Ea(fywr5er,4f2sms.k cyk k tu+1nl:c -rth has macs ey mf utyl1k2:c kr+kf-r,n.5s4(wss $5.98 \times 10^{24} \; kg$ and $g = 10\;m/s^{2}$ . What is the magnitude of the gravitational force that the boulder exerts on the Earth?

  09.12: A 5.0 kg sphere is in free fall near the surface of ocke*zek59qh 8l dvc3v-c.v1the Earth. What is the magnitude of the gravitational force acting on the earth by the sphere? Thv83 vcd1*keczoevk 59 .h-lqce Earth mass is $5.98 \times 10^{24} \; kg$ .

  00.09: Is it possible for an object’s velocity to increase while its accelerud:kvjm.a kt.vw 1;u.ation decreuvvkkt1:. a;juw.. dmases?

  00.11: A certain particle undergoes erratic motion. At every point in +-s2 q6ea l2i ,vrsvgaits motion, the direction of the particle’s momentum is AL22riqv-,lv+s gaes 6a WAYS

  17.14: A block is suspended in the air at the ehya)iq81dixy (x2 j smf,+,j,dx:sjp- sd j5fnd of a string held by a person. The person pulls on the string uniformly accelerating the block upward for a short time. During this time, which one of the following choices correctly identifies the Newton’s Thif(x158dyi-j,,s :xqhjajd fp,+sy2 m x)j s idrd Law pair force to the force of the string on the block?

  07.18: In which one of the followi(0sc i7r66w/jsyrxq ing situations is the net force constantly zero on(q0c/sj 76iywrsrix 6 the object?

  13.28: An object is in free faef/weilgw7s16 wywaj.o* b :(6uc +xill close to the ground. A person intervenes and slows the object uniformly to rest. Which one of the following statements must be true about the magnitude of the acceleration ofsui/+yeo fe x1wwbl(7:* i66c. wajwg the object as it is being stopped by the person? The magnitude of the object’s acceleration is a and the magnitude of the acceleration from gravity is g.

  98.03: An object in equi6 5medk8w.tio2 , yrf;jrfwb9librium has three forces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultant ofF1 and je5.,wordmi98yk ;w rft bf62F2 is

  01.07: A force of 6 Newtons and a forx (r9hbg .hd.rce of 10 newtons can be combine to form a resultant with a magnitude of which ofb(.hrx r9d hg. the following

  10.06: Which of the following staterl (. zw3*topcberaiyg7)9zh8r a)7 hments is most closely associated with Newton’s Thi y8hzb(ac9gr )l*7ez .r o th7wapir3)rd Law of Motion?

  95.06: The reaction force does not cancel the action forcy408urepm h m1rgwl+( e because:

  14.14: A box rests on the floor of an elevator. Th/c3a+f:tgx jg 3vwlk :e elevator is accelerating upward. Which one of the following choices best represents the Newton’s Thirdg3 c3 ajf:kwgxl:v/+t Law pair force to the gravitational force acting on the box by the Earth?

  15.15: A skydiver falls downward through the air with constant speed. W eqx cdf-o3:*xuxb)) uhich one of the fx)ec*)-fobq duuxx:3ollowing choices correctly describes the Newton’s Third Law pair force to the air resistance acting on the skydiver during the fall?

  06.08: A baseball is thrown by a pitcher with a speed of 35 m/urz joshr.s1f)58 l 5os. The batterswings and hit85 ss1h. loforjr z)u5s the ball. The magnitude of the force that the ball exerts on the bat is always

  11.13: A physics book sits at rest on a table. On top of 9c8vdoee+ pa einkbd6 ;n0 -a9the book is a calculator, also at rest. Which one of the6 bvnc-deaop 9a id9k;+8ne0e following choices is the Newton’s Third Law pair force to the force that the table exerts on the book?

  05.06: The students no6 q4v6i 7ep7cybxa n-wf5 o0r4jd -zin a Physics I class were in lab conducting an experiment rel6r50niqe--bcyzvjf74x awd 6o p4o7 nated to Newton's Second Law. The collected data were displayed on the graph at the right. From this graph, what conclusions can the students make?

  99.03: If the net force on an object were doubled whilxzidlgc+6o7t i*q.h 3 e at the same time the mass of the object was halved,then the acceleration ofizqd6 i*gxhot.7l +c 3 the object is

  96.15: A car whose mass is 1500 kg is accelerated uniformly from resv( udr:+h q8jzt to a speed of 20 m/s in 10zvr+u(q8 hd:j s. The magnitude of the net force accelerating the car is:

  99.05: A tractor-trailer truck -+p5ghnk,qeorz5g;zls(t4 k is traveling down the road. The mass of the trailer is 4 times the mass of the tractor. If the tractor accelerates forward, the force that the trailer applies on the tractor ilo+zt(p5zkhn ; gq5-kg4,rse s

  99.16: Which of the following principles best expla) *kd oht2c6wqw67d a( if6gpjins why large tractor-trailer trucks generally accelerate much mfjt6)67pw*cg wdk (ai2d6h o qore slowly that automobiles?

  99.19: A 50 kilogram skater at rest on a frictionless rt7jo/y tj;4p aink throws a 2 kilogram ball, giving the ball a velocity of 10.0 m/s. japy 7ot4;jt/Which statement describes the subsequent motion?

  00.13: An object near the surface of the earth wit+fgunho ) 1 ;8 i:b14vmmcv bpi2w,mhkh a weight of 100 newtons is accelerated a1 mm;vvhphbi4,8 cuifmgn21w)ok b +:t $4\;m/s^{2}$ . What is the net force on the object?

  98.25: A car whose mass is 1200 kg is accelerated from rest2t,,.b ajoykw by a constant force of 2400 N. What is the speed of the car 8.0 s aftety abo .j,w2,kr beginning?

  98.32: A 3.0-kg block with initial spee e(xwh eh6be 5b7d(q6uget(+gd 4.0 m/s slides across a rough horizontal floor before coming to rest. The frictional force h h b+(( gw7(eexte6dgqbeu 65acting on the block is 3.0 N. How far does the block slide before coming to rest?

  95.38: A block with initial velocity 4.0 m/s slides 8.0 m across a rd hj:4rs/hz3g/0t jf vough horizontal floor before coming to rest. The / 0/vh 4hr:szdjfgtj 3coefficient of friction is:

  09.21: A 20.0 kg box remains at rest on a 23 zslvw cf .efnxo/ml5b)m98horizontal surface while a person pushes directly to the right on the box with a force of 60N. The coefficient of kinetic friction between the box avs39/el.x)2bzofnlfm5m 8 c wnd the surface is $\mu_k$ = 0.20. The coefficient of static friction between the box and the surface is $\mu_s$ = 0.60. What is the magnitude of the force of friction acting on the box during the push?

  13.16: A block initially moving at 8 m/s accelerates uniformly js m0q p5y(ik, 1axud;f7yft 0to rest on a horizontal surface. The block travels a distance of 12.0 m during the slide. Which one of the following choices best rqu y0kmiydajsx5ff0 (17 p; ,tepresents the coefficient of kinetic friction between the surface and the block?

  00.21: A car of mass m slides acodk-n2y v+xzwh z,hs7 bic s68-n*- qtross a patch of ice at a speed v with its brakes lock 6ynq2i hsod+bw-x-7h*k c,z tv-snz 8ed. It then hits dry pavement and skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .
If the car had a mass of 2m, it would have skidded a distance of

  00.22: A car of mass m slides across a patch of icev,f(1he j.49n kzhu mr at a speed v with its brakes locked. It then hits dry pavement ekj(,r9hm u nv1hf4.zand skids to a stop in a distanced. The coefficient of kinetic friction between the tires and the dry road is μ .

If the car had a speed of 2v, it would have skidded a distance of

  04.32: he driver of a car makes an emergency stop by slamming on the car's brakehy2tc 877evqx shq cy77v 2e8xt and skidding to a stop. How far would the car have skidded if it had been traveling twice as fast?

  99.39: The driver of an automob4cadg k t*m1.zile must carefully control each of the following devices. Which of these devices can cause an acceleration in a movinmc1. d*a4t gkzg car?
(1) the break pedal ( 2) the gas pedal ( 3) the steering wheel

  00.25: The net force on a rocket with a weight of 15000 newt 27agewkqgsx e(g 8va+n/u16 xons is 24000 newtons. About how much time is needed to increase the rocket ’ speed from 12 m/s to 3xv x/eqw+kaagg7 8u 2 en1sg(66 m/s near the surface of the Earth at takeoff?

  07.21: A box slides to the right across a horizontal floor. A perso5 r)i3f9clxrl.ln/3g d(k (u d2alctbn called Ted exerts a force T to the right on the box. A person called Mario exerts a force M to the left, which is half as large a (.bgcukrl2d9(d xalcn/i f35l rlt)3s the force T. Given that there is friction f and the box accelerates to the right, rank the sizes of these three forces exerted on the box.

  02.27: The diagram below shows three roller coaster traong,15m xj c6gcks of equal length. Assume that on all tracks the roller coaster cartjo5,cm x 1ggn6s start from rest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart be traveling the fastest at the finish?

  02.28: The diagram below shows three roller coasterh 4 j7azphk1m-tm(j,x tracks of equal length. Assume that on all tracks the roller coaster carts start from (4xjma p,z71k h- tjmhrest at the same elevation and moves frictionlessly over the tracks to the finish.
If all roller coaster carts start at the positions shown, on which track would the roller coaster cart reach the finish first?

  02.29: Assume the rollercoaster cartrolls frictionlessly alongelb7c e7tuzvmxxz8oh s)m-6. 2r5 a1f the curved track from point A to point C under the influence of gravity. What would be thf5z )hx-21b u 8cmal6te eov7xrszm7. e direction of the cart's acceleration at point

  02.40: A box with a mass of 50 kg is drag+)wx j,tmc x1yged across the floor by a rope which makes an angle of 300 with the horizontal. Which of the following would be closest to the coefficient of kinetic friction between the box and the floor if a 250 newton force o)twjx+1m yc,x n the rope is required to move the crate at a constant speed of 20 m/s as shown in the diagram?

  04.40: A 6.0 kg block initially at rest is pushed against a wz+iqq ba 5hf*i6o ;6fyall by a 100 N force as shown. Thecoefficient of kinetic friction is 0.30 while the coefficient of static friction is 0.50. What is true of the h;5oif 6*a+y 6 fzqbqifriction acting on the block after a time of 1 second?

  05.10: A homeowner pushes a lawn mower across a horizonlx+61 wvpsbjv),zo 7c( d4bawtal patch of grass with a constant speed by applying a force P. The arrows in the diagram correctly indicate the directions but not necessarily the d( ,p) bwwsl oaxzjbvc 71v4+6magnitudes of the various forces on the lawn mower. Which of the following relations among the various force magnitudes, W, f, N, P is CORRECT?

  06.14: A book leans against a crate 5jb* w4ylwci 5on a table. Neither is moving. Which of the following statements concerning this situation is 4bw5j c5 *iywlCORRECT?

  06.15: A crate of toys r*bho stjy:;;+d. dbj )ch, mdit7z6bj emains at rest on a sleigh as the sleigh is pulled up a hill with an increasing speed. The crate +c;j zybsdhm;ttd)bjbo*: ,jhi . d6 7is not fastened down to the sleigh. What force is responsible for the crate’s increase in speedup the hill?